AstroGrav is an astronomy software program that allows you to simulate how astronomical objects move and interact under the force of gravity. It features superb interactive 3D graphics which allow you to move around within a many-body astronomical system, while watching how it evolves with the passage of time.

A wide variety of sample files are provided, including Solar System, space mission, and abstract systems, and these enable you to experiment with the astronomy software without having to enter your own data. The comprehensive editing facilities allow you to either create your own astronomical systems, or to modify existing ones, and provide you with an almost endless scope for experimentation and investigation.

AstroGrav can be used to visualize and understand the following aspects of gravitational systems and astronomical systems.

Basic concepts of mass, position, velocity, acceleration, force, momentum, and energy.
Kepler's Laws of Planetary Motion and Newton's Law of Gravitation.
Many body systems and the n-body problem.
Orbits and Lagrange points.
Interchange of potential energy and kinetic energy in gravitational systems.
Projectiles and escape velocities.
Gravitational slingshots used in space missions.

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